These entries are queried from radb.net using whois, you can try my project getting these.
:AS62718 route: 172.84.153.0/24 descr: SPRINGFIELD SCHOOL DISTRICT DELCO 200 Yale Avenue USA remarks: proxy-registered object for customer remarks: direct inquiries to dtirado [at] dciu.org origin: AS62718 mnt-by: MAINT-AS6079 changed: michael.toth [at] rcn.com 20181206 source: RADB last-modified: 2023-11-13T15:55:21Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source